Hand operated lock



my m, 93@ J, HOLTZMAN 19a-.6,171

HAND OPERATED LOCK Original Filed March l2, 1925 2 Sheets-Sheet l Judy1934. 1 HOLTZMAN 1,966,171

HAND OPERATED LOCK original Filed March 12, 1925 2 sheets-sheet- 2fill/14155141111( J f zg. 6 95 124 @Mw/Mio@ Patented July 10, 1934UNITED STATES PATENT FFICE HAND OPERATED LOCK John Holtzman, New York,N. Y.

14 Claims.

My invention relates to hand operated locks, of

a type suitable for use upon doors and the like,

my improved lock having a number of bolts movable relatively to eachother, and coacting with each other and with other parts, in order toincrease the security and efciency of the lock.

This application is a division of my pending application for patent upondoor locks, Serial No. 14,980, led March 12, 1925.

Reference is made to the accompanying drawings forming a part of thisspecification and in which like letters indicate like Vparts throughoutall of the gures.

Figure 1 is a longitudinal section through my improved lock, and istaken upon the line 1-1 of Figure 2, looking in the direction indicatedby the arrows.

Figure 2 is a section taken on the line 2-2 of Figure 1, looking in thedirection indicated by the arrows.

Figure 3 is a section on the line 3-3 of Figure 2, looking in thedirection indicated by the arrows.

Figure 4 is a plan View of a knob forming a part of my improved lock.

Figure 5 is a perspective of the lock casing.

Figure 6 is a plan view of the key used in connection with my lock.

Figure 7 is an edge elevation of the key.

A casing 90 is provided with a front plate 91, having side and end walls92, and also inwardly extending walls 93. The casing also has a flange94, located upon its under side and partially covering the bottom,toward the front.

A plate 95 extends over the inner side of the flange 94, and is attachedby screws to bosses in the casing, so as to form a complete bottom wall.

A knob 96 is revolubly mounted in the fro-nt plate 91, and is providedwith a stem 97, the latter having an axial bore 98. Rigidly mounted onthe stem is a double ended lever, one end 99 of same being disposed inthe plane of its hub and the other end 100 oiset, for a purposehereinafter described.

vAn inner casing 101, shown more particularly in Figure 5, having sidewalls 102 and 103 and edge walls 104 is slidably mounted within thecasing 90, the edge walls 104 being in contact with the side walls 92 ofthe casing. One of the side walls, 103, is in contact with the bottomplate 95, and the other side wall 102 being guided by the cover plate91. The side Walls 102 and 103 are provided respectively'with recessesextending from their rear ends, as'shown at 105, and leading from theserecesses are a pair of shorter recesses 106 and 107,

extending transversely, the entrances to these last mentioned recessesbeing beveled as shown in Figure 5.

Referring to Figure 1, it will be noted that the arm 99 is adapted toenter the recess 106 whenever the knob 96 is rotated, but the oiTset arm100 does not enter the recess just mentioned. The arm 100, being in aplane diierent from that of the side wall 102, simply moves idly alongthe surface of this side wall.

Three separate bolts are used in my lock, namely, a center bolt 108 anda pair of side bolts 109 and 110. The center bolt 108 is provided with acentrally disposed elongated slot 111, through which extends a pin 112,fixed in the side plates 102 and 103 to guide and limit the bolt in itsmovement in its relation to the inner casing.

A pair of arms 113 and 114, spaced apart, extend rearwardly from thebolt. The arm 113 has a raised portion 115, and the arm 114, which issomewhat wider than the arm 113, is provided with a recess 116, solocated as to receive the oiset arm 100, by the regular movements ofwhich the bolt may be operated.

A keeper 117, having a box-like form, is secured upon the jamb of thedoor by screws extending through the ilange 118 of the keeper. Thekeeper is open on the side next the lock, except for inturned flanges119 at its ends. These ilanges, when the door is closed, are locatedadjacent the flanges 93 of the lock casing.

The bolts 109 and 110 are of the same shape and construction but arereversed in position. These bolts have heads which are normally held incontact with the head of the center bolt 108 by means of compressionsprings 120, set into openings in the outer edges of the side bolts,these springs abutting the inner walls 104 of the movable casing 101.

The side bolts 109 and 110 have recesses 121 in their outer edges, sodisposed as to clear the iianges 93 and 119. The heads of the side boltsextend like hooks over the recesses 121 and the side bolts can only bereleased by retracting the center bolt 108 so that its head is withdrawnsuciently to extend into the spaces of the side bolts, beyond theshoulders 122, from Which the heads of the side bolts extend.

The side bolts are provided with stem portions of reduced diameter andextending rearwardly. These stem portions are closely adjacent the inneredge walls 104 of the casing, and terminate in bosses 123, the innersurfaces of which make sliding ycontact with the arms 113 and 114respectively, of the center bolt.

The bosses 123 are bored to receive sleeves 124. These sleeves extendthrough openings 125 in the sides of the inner casing. Carried in thesesleeves 124 are spherical members 126, pressed outwardly intodepressions 127 and 128 formed in spaced relation within the cover plate91, by means of compression springs 129 held in the sleeves and backedby screws 130.

In order to operate the bolts, the knob 96 is rotated by hand to theextent of a full turn, onehalf of this turn serving to retract thecenter bolt. This is done by means of the lever 100, extending into therecess 116. The Yother half of the turn of the knob causes ythe lever 99to extend into the recess 106, thus moving the inner casing 101 and theside bolts 109 and 110, as a unit, rearwardly.

The inner casing and the two side bolts are held in their respectivepositions into which they are thus moved, this being done by sphericalmembers 126, extending into either the front depression or the reardepressions in the casing cover.

' The lock is provided with means whereby it may be operated by means ofa key. The mechanism for this purpose is located upon the opposite sideof the door from the parts just mentioned, and consists of a cylinderlock, generally designated by the numeral 135. This cylinder lock isprovided with a iianged base 136, adjustably held in position by boltsextending through the plate 13'7 set in the door.

The cylinder lock, which may be of any approved type, is provided with aflat stem 138 extending into the opening 98 of the knob 96 and into thelock casing, through a bushing 139 which is revolubly mounted in thebottom plate 95 of the lock casing.

Rigidly mounted upon the extending end portion of the bushing 139 is alever having arms 140 and 141, the last mentioned arm being offsetinwardly to clear the inner casing recess 107, the first mentioned armbeing arranged to extend into the recess 116 of the center bolt, andthus being adapted to operate the lock by the insertion and turning ofakey, in substantially the same manner as by rotation of the knob 96.

A anged disk.142, disposed at the outer end of the cylinder 135, isscrew-threaded on its outer surface and engages a dial 143. This dial isprovided with an opening 144, so positioned as to register with a keypassage 145, for a cylinder look key 146 of the usual fiat type.

The dial is normally held in proper adjustment to either cause theopening 144 to register with the key opening 145, or else remain out ofregistry to prevent the entrance of a key. For the purpose of thusholding the dial I provide a screw 147, having a square head extendinginto an opening 148 in the dial, the screw being threaded and fittedinto the flanged disk 142, and operated by aid of a wrench 149, formedon the stem of the key 146.

Except as above noted, my improved lock is in structure and action likeother locks heretofore known.

I do not limit myself to the precise mechanis shown, as variations maybe made therein without departing from my invention, the scope of whichis commensurate with my claims.

Y Having thus described my invention, what I claim as new and desire tosecure by Letters Patent is as follows:

- 1. A door lock comprising a casing body and a keeper, an innercasing'slidably mounted within said casing body, a pair of bolts pivotedto said inner casing, a single bolt located between the pair of boltsand movable independently thereof, a lever revolubly mounted within saidcasing body and provided with two arms, one of said arms being mountedto engage said center bolt and to move the same, the other of said armsbeing mounted to engage the inner casing and shift the position thereof,a knob mounted upon one side of said casing body for manually rotatingsaid level', a second lever also mounted to move the casing and centerbolt, and key operated mechanism mounted upon the side of said casingbody opposite said knob, for the purpose of rotating said secondYmentioned lever independently of said knob.v

2. A lock including a casing having a cover, a frame disposed Withinsaid casing and consisting of a substantially constant gauge metal, abolt for said lock, said frame having means for guiding and limiting themovement of said bolt in relation to said frame to its locking andunlocking positions, and said inner frame serving as a rest for thecover plate to close the lock casing, and means for moving said bolt.

3. A lock including a casing having a cover, a frame disposed withinsaid casing and consisting of a substantially constant gauge metal, abolt for said lock, said frame having means for guiding and limiting themovement of said bolt in relation to said frame to its locking andunlocking positions, and said frame serving as a rest for the coverplate to close the lock casing, and means for moving said bolt, saidmeans for' guiding and limiting the movement of the bolt comprising apin transversely supported upon said frame and extending through a slotin said bolt.

4. A lock including a casing having a cover, a frame disposed withinsaid casing and consisting of a substantially constant gauge metal, abolt for said lock, said frame having means for guiding and limiting themovement of said bolt in relation to said frame to its locking andunlocking positions, and said inner frame serving as a rest for thecover plate to close the lock casing, and means for moving said bolt, alboss extending outwardly from said casing through an opening in saidinner frame for retaining said cover plate.

5. A door lock comprising a casing body, an inner casing slidablymounted within said casing body, a. pair of bolts pivoted to said innercasing,

a bolt located between the pair of bolts and movable independentlythereof, said latter bolt being adapted to hold said pair of bolts inlocked position With relation to a keeper, a lever revolvably mountedwithin said casing body and provided with a plurality of arms, one ofsaid arms being arranged to engage said center bolt and to move thesame, the other of said arms being arranged to engage said inner casingand to shift the same within said casing body, and means for operatingsaid lever.

6. A door lock comprising a casing body, an inner casing slidablymounted within said casing body, a pair of bolts pivoted to said innercasing, a bolt located between the pair of bolts and movableindependently thereof, said latter bolt being adapted to hold said pairof bolts in locked position with relation to a keeper, a leverrevolvably mounted within said casing body and provided with a pluralityof arms, one of said armsbeing arranged to engage said center bolt andto move the same, the other of said arms being arranged to engage saidinner casing and to shift the same within said casing body, and meansfor operating said lever, said .lever arms arranged to slide said centerbolt and said inner casing in sequence.

7. In a lock, the combination with a casing, a hook shaped boltpivotally mounted in the casing, a mechanism to operate the boltincluding a movable member arranged to be reciprocated in the casing, alever rotatably mounted in the front wall of said casing to actuate saidreciprocating member, a pin secured in the casing, said reciprocatingmember having a slot in which said pin engages to guide thereciprocating member, said reciprocating member operating to rock saidhook shaped bolt on its pivot for interlocking engagement with a keeper,a cover detachably secured to the rear face of the casing to cover themechanism and to maintain said mechanism against displacement laterallyof said casing, a knob connected to said lever and arranged in the frontof the iront face of the casing to operate the lock.

8. In a lock, the combination of a lock casing, an inner casingslidingly mounted within said lock casing and movable relativelythereto, a pair of rockingly mounted bolts each having a pivot in saidinner casing, a third bolt intermediate said first bolts and movablelongitudinally in said inner casing, and adapted to be projected into akeeper, means within said inner casing for guiding said third bolt, alever mounted in the wall of the lock casing and adapted to move theinner casing with the bolts conned therein as a unit, and key operatedmeans to turn said lever to actuate the lock.

9. In a lock, the combination of a lock casing, inner casing slidinglymounted Within said lock casing and movable relatively thereto, a pairof rockingly mounted bolts each having a pivot in said inner casing, athird bolt longitudinally movable intermediate said rst mentioned boltsin said inner casing and adapted to be projected into a keeper, meanswithin said inner casing for guiding said third bolt, a lever mounted inthe wall of the lock casing and adapted to move the inner casing withthe bolts confined therein as a unit, and key operated means to turnsaid lever.

10. In a lock, the combination of a lock casing, a second casing movablerelative to and disposed within the lock casing, two bolts pivotallymounted in said second casing, spring means carried by said secondcasing for moving the two bolts toward each other, a lever rotatablymounted in the lock casing for moving said second casing, a third boltmounted in said inner casing adapted t0 be projected into a keeper andto move the two bolts out of the casing and turn them on their pivotsinto locked position with the keeper, and manual means to actuate saidlever.

1l. In a lock, the combination of a lock casing, a keeper, an innercasing slidingly mounted Within said lock casing, a pair of boltspivotally mounted in the inner casing, springs mounted in the casing foryicldingly moving the outer ends of the bolts into position to enter thekeeper, a third bolt movable in the inner casing intermediate said twofirst mentioned bolts and adapted to be projected into the keeper, alever rotatably mounted in the lock casing, said lever adapted to movefirst the inner casing with the pivotally mounted bolts located therein,thereby moving said bolts into the keeper and to then move said thirdbolt to cause it to enter the keeper, thereby swinging the two bolts ontheir pivots, against the action of the springs, to their lockingposition, a cover plate detachably secured to the lockcasing formaintaining said bolts in operative position, and manual means toactuate said lever to operate the lock.

12. In a lock, the combination of a casing, two bolts pivoted thereto, athird bolt slidingly mounted intermediate said two bolts for moving thelatter longitudinally, means mounted in the casing for guiding saidthird bolt in a straight line path, key actuated means for moving saidthird bolt from the casing into a keeper and causing said two firstmentioned bolts to be turned on their pivots, a stationary lock casingin which said rst casing is mounted for longitudinal movement, and alever rotatably mounted in the lock casing for moving said iirst casingwith the bolts conned therein as a unit, and manually operated means toturn said lever.

13. In a lock mechanism the combination of a casing, a main bolt movableWithin the casing and adapted to be projected into a keeper, a pair ofhook-shaped supplementary bolts mounted within said casing, saidsupplementary bolts adapted to move up and down and being actuated bythe movement of said main bolt for interlocking engagement with akeeper, a lever rotatably mounted in the front wall of the casing toactuate the main bolt, a cover plate detachably secured to the lockcasing for keeping and guiding the mechanism in its movement, a flangeintegral with the casing and arranged to overlap the cover plate toprevent said plate from lateral displacement when said plate is restingon said mechanism, means for fastening said plate to the lock casing, asecond lever rotatably mounted in the cover plate, spring meansassociated with said mechanism for keeping said bolts in operativeposition, and key operated means to rotate said last mentioned lever tooperate the lock.

14. In a locking mechanism the combination of a casing, a main boltmovably mounted within the casing and adapted to be projected into akeeper, a pair of hook shaped supplementary bolts movably mounted withinsaid casing and being actuated by the movement of said main bolt, alever rotatably mounted in the front wall of the casing for moving themain bolt, a cover plate detachably secured to the lock casing forguiding said bolts in their movement into locking and unlockingpositions, a ilange integral with the casing overlapping the cover andsecuring said cover against lateral displacement, said mechanismproviding a rest for said cover plate when said plate is fastened to thelock casing, a second lever rotatably mounted in the cover plate tooperate said mechanism from the outdoor side of the casing, and keyactuated means to turn said latter lever.

JOHN HOLTZMAN.

